Grove City, PA 16127 Frost Dates
Grove City, PA: when does the frost end?
Around 05/15 is the usual last spring frost, about 260 days away. Fall's first freeze usually shows up around 10/03, roughly 140 days after the last spring frost.
Grove City sits in USDA Zone 6a (-10 to -5°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
With roughly 5 weeks until Grove City's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
05/15 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/30 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/01 and only about 1 year in 10 sees frost after that.
Grove City against the rest of the dataset
Grove City's growing season runs about 140 days, ranking 37,042 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 1,979 of 2,088.
Learn more
Before leaning on 16127's figures: local microclimates explains what one yard in Grove City can differ from the 16127 normal, while zone vs. frost date explains why Zone 6a and Grove City's frost date answer different questions.